WO2017144960A1 - Klaxon de véhicule silencieux (« v-horn ») conçu pour réduire la pollution sonore - Google Patents

Klaxon de véhicule silencieux (« v-horn ») conçu pour réduire la pollution sonore Download PDF

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Publication number
WO2017144960A1
WO2017144960A1 PCT/IB2016/054367 IB2016054367W WO2017144960A1 WO 2017144960 A1 WO2017144960 A1 WO 2017144960A1 IB 2016054367 W IB2016054367 W IB 2016054367W WO 2017144960 A1 WO2017144960 A1 WO 2017144960A1
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WO
WIPO (PCT)
Prior art keywords
horn
sound
noise
receiver
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2016/054367
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English (en)
Inventor
Vasudevan Tachoth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/IB2016/054367 priority Critical patent/WO2017144960A1/fr
Publication of WO2017144960A1 publication Critical patent/WO2017144960A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/161—Decentralised systems, e.g. inter-vehicle communication
    • G08G1/162—Decentralised systems, e.g. inter-vehicle communication event-triggered

Definitions

  • a NOISE FREE VEHICULAR HORN (V-HORN) DESIGNED FOR THE REDUCTION OF NOISE POLLUTION
  • the novel device is a vehicular horn which does not irritate the pedestrians or passengers by producing deafening sound.
  • the system works on the principle of wireless transmission of modulated signal. Compared to currently used horn types, noise free vehicular horn is capable of alerting the driver or pedestrian without making loud sound. Noise pollution can be controlled to a minimum level by the implementation of this system to all vehicles. Thereby many health problems due to noise can be prevented.
  • the three operating modes of v-horn make it suitable to be used in silence zones also.
  • Noise Pollution is one of the alarming environmental threats, which makes many negative consequences in the ecosystem.
  • the problem should be considered as important as air and water pollution.
  • unawareness about the troubles caused by ear-splitting sounds is the main reason behind the low grade given to noise pollution.
  • Keen observations show that vehicular horns are one of the major contributors to noise pollution. It is a common scene in roads where drivers are simply blowing horn of no use thereby disturbing the pedestrians, passengers of other vehicles, other living beings etc.
  • a decibel is the standard for the measurement of noise.
  • the response of the human ear to sound depends both on the sound frequency (measure in Hertz, Hz) and the sound pressure (measured in decibels, dB).
  • Human beings can detect sounds in the frequency range, 20Hz-20,000Hz.
  • OdB the lowest threshold of hearing
  • whispering sound is 20dB
  • noise in a quiet office is 40dB
  • a normal conversation holds 60dB
  • noise from industries, vehicles, crackers etc starts around 80dB
  • the highest threshold of hearing is 180dB causing the ear drum to damage.
  • Sound intensity from OdB to 80dB can be taken as healthy range for human beings. But it is has been proven that continuous exposure to sound above 80dB intensity could induce heart attacks and increase stress levels.
  • horns produce sound in the range of 75dB to 120dB. Even though the sound emitted by single horn is below 80dB, the threshold level will be crossed since pedestrians and passengers are exposed to many such horns on a highway. Numerical difference between 80dB and 90dB is just lOdB while lOdB increase in sound intensity doubles the loudness. According to the motor vehicle rules, two-wheelers should not use horns emitting more than 80dB sound. Similarly, for cars and petrol auto rickshaws the permissible limit is 82dB, for light heavy vehicles and diesel auto rickshaws limit is 85dB and horns of lorry, bus etc should not exceed 91dB. However some noise survey articles show that noise level in most of the areas is in the range of 80dB-120dB which is much higher that the acceptable limits.
  • Air Horn It is an apparatus that makes a loud noise from pressurized air tank and air compressor. Air horns are used in buses and heavy vehicles like trucks.
  • Electric Horn As the name indicates it is powered by electricity. The horn produces either a low- or high-pitched sound.
  • Snail Horn Snail shaped horn having long life and beautiful sound quality.
  • Siren Horn Trumpet shaped horn producing variety of sounds. It is usually used in vehicles of police department, fire trucks, ambulance etc. All these types have been designed for producing high decibel sound and there is no notable difference except in the case of musical horn. But even if the horn is musical type, its loudness may annoy the pedestrians and passengers. Thus a change is necessary in the design of vehicular horns.
  • the principal object of this invention is to reduce the noise from vehicular horns.
  • Another purpose of this invention is to prevent the noise pollution related health troubles. I have a goal of diminishing the noise pollution caused by vehicles and thereby comforting all the living beings to lead a quality life.
  • This invention also aims at creating a peaceful atmosphere in the highways to attract more birds and tiny animals in order to keep the balance of ecosystem.
  • Noise free vehicular horn is a system which works on the principle of wireless transmission of modulated signal.
  • the sound produced by horns travel through the air and our ear receives the high decibel sound as it is.
  • the sound signal is superimposed into a radio carrier wave and it travels between the transmitter antenna and receiver antenna in the modulated form.
  • a beep sound is produced from the receiver fixed near the steering. So it does not irritate anyone.
  • an external horn that emits sound around 63dB is also available. When a pedestrian is crossing carelessly, this horn can be applied.
  • the detailed functioning of v-horn is given in the next section.
  • amplitude modulation amplitude of the carrier wave is varied in accordance with that of the input signal. For example, consider that the signal to be carried is a sound wave. So its value at each point is reflected in the amplitude of the radio frequency carrier wave. Thus the amplitude of the carrier wave is changed in accordance with the input signal while its frequency remains unchanged.
  • frequency modulation frequency of the carrier wave is varied in accordance with the input signal and its amplitude remains the same.
  • the signal to be transmitted is superimposed to carrier wave.
  • the receiver On reception of the signal, the receiver, which is tuned to the frequency of the carrier wave, decodes and demodulates the signal to its original form. This is how wireless transmission works. Let us now see how this principle of radio communication is implemented in noise free vehicular horn (v-horn).
  • Noise free vehicular horn consists of a transmitter-receiver kit and low decibel convention horn.
  • This low decibel convention horn is the vehicle's external horn which produces a sound of around 63dB and can be named as external horn.
  • the whole system is powered by the vehicle battery.
  • Figure 1 and figure 2 of the drawings show the transmitter and the receiver circuits respectively.
  • the sound signal When the push button on the transmitter part is pressed the sound signal is produced and it is modulated with a radio carrier wave which may have frequency within the range of 300-600MHz. This modulated sound signal is then transmitted from the antenna. Transmitter and receiver communicate through channel '0' and reject all the information from other channels, making it easier for identification of signal from the transmitter. The transformed signal is accepted by the receiver antenna and it is send to the decoder part for the separation of sound signal from radio carrier wave. When the signal source is identified by the receiver, a beep sound can be heard from the buzzer together with Light Emitting Diode (LED) glow alerting the driver about vehicles running behind his/her vehicle.
  • the kit is placed near the steering so that the driver in the vehicle behind can simply apply the horn and driver in the vehicle ahead get warned through low decibel beep sound and LED light.
  • LED Light Emitting Diode
  • the system operates in 3 modes named as dual mode, wireless mode and auto mode.
  • dual mode two uses are there.
  • the received signal simulates the (a) buzzer-LED combination, which inform the driver only, and (b) also the external horn in order to alert the pedestrians.
  • the equipment is set in wireless mode, it works like first option of dual mode thereby breaking the connection to external horn.
  • the third and last, auto mode operation depends on the status of Light Dependent Resistor (LDR). At night LDR does not work because of the absence of sunlight. Thus a switch fixed near LDR automatically gets off during night and external horn will be disconnected. Therefore the rule is obeyed even if the citizen is not willing to.
  • LDR Light Dependent Resistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Traffic Control Systems (AREA)

Abstract

Selon l'invention, le klaxon de véhicule silencieux (« v-horn ») conçu pour réduire la pollution sonore est une nouvelle idée qui permet de fabriquer un klaxon qui ne perturbe pas l'équilibre de l'écosystème. Les klaxons destinés à avertir sont toujours fabriqués de manière à produire un son puissant. Un klaxon de véhicule est considéré comme étant bon lorsque le son est intense. Les klaxons communément utilisés émettent un son supérieur aux limites admissibles et provoquent des problèmes de santé allant de la céphalée à des troubles cardiovasculaires. Ceci est une invention qui permet de changer la situation actuelle. Le kit émetteur-récepteur et le klaxon classique à faible décibels constituent les deux parties principales de l'invention. Lorsqu'on appuie sur le bouton de klaxon situé à l'arrière du véhicule, un signal sonore qui est transmis sous la forme modulée est démodulé par le récepteur situé dans le véhicule précédent, et produit le son « bip ». Ainsi, un piéton ou un conducteur peut être averti sans que cela dérange les autres usagers. Les schémas des circuits de l'émetteur et du récepteur sont représentés dans la description.
PCT/IB2016/054367 2016-07-22 2016-07-22 Klaxon de véhicule silencieux (« v-horn ») conçu pour réduire la pollution sonore Ceased WO2017144960A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2016/054367 WO2017144960A1 (fr) 2016-07-22 2016-07-22 Klaxon de véhicule silencieux (« v-horn ») conçu pour réduire la pollution sonore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2016/054367 WO2017144960A1 (fr) 2016-07-22 2016-07-22 Klaxon de véhicule silencieux (« v-horn ») conçu pour réduire la pollution sonore

Publications (1)

Publication Number Publication Date
WO2017144960A1 true WO2017144960A1 (fr) 2017-08-31

Family

ID=59685902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/054367 Ceased WO2017144960A1 (fr) 2016-07-22 2016-07-22 Klaxon de véhicule silencieux (« v-horn ») conçu pour réduire la pollution sonore

Country Status (1)

Country Link
WO (1) WO2017144960A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112550143A (zh) * 2020-11-27 2021-03-26 常州市武进悦达电声器材有限公司 用于改变报警器报警声音的音量级别的方法及其报警器
CN120993757A (zh) * 2025-10-22 2025-11-21 山西万家寨水控工程投资有限公司 一种水源地突发污染的应急供水智能调度方法及系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2493456Y (zh) * 2001-04-27 2002-05-29 刘采联 汽车无噪音低分贝门铃式城市环保喇叭
US8693708B2 (en) * 2010-08-24 2014-04-08 Star Headlight & Lantern Co., Inc. System for operating a device for producing an audible alarm

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2493456Y (zh) * 2001-04-27 2002-05-29 刘采联 汽车无噪音低分贝门铃式城市环保喇叭
US8693708B2 (en) * 2010-08-24 2014-04-08 Star Headlight & Lantern Co., Inc. System for operating a device for producing an audible alarm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112550143A (zh) * 2020-11-27 2021-03-26 常州市武进悦达电声器材有限公司 用于改变报警器报警声音的音量级别的方法及其报警器
CN120993757A (zh) * 2025-10-22 2025-11-21 山西万家寨水控工程投资有限公司 一种水源地突发污染的应急供水智能调度方法及系统

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